Changes in Kconfig

f6bb3e9d - net: pcs: xpcs: Add Synopsys DW xPCS platform device driver

Mon, 01 Jul 2024 18:28:38 +0000

net: pcs: xpcs: Add Synopsys DW xPCS platform device driverSynopsys DesignWare XPCS IP-core can be synthesized with the device CSRsbeing accessible over the MCI or APB3 interface instead of the MDIO bus(see the CSR_INTERFACE HDL parameter). Thus all the PCS registers can bejust memory mapped and be a subject of the standard MMIO operations ofcourse taking into account the peculiarities of the Clause C45 CSRsmapping. From that perspective the DW XPCS devices would look as justnormal platform devices for the kernel.On the other hand in order to have the DW XPCS devices handled by thepcs-xpcs.c driver they need to be registered in the framework of theMDIO-subsystem. So the suggested change is about providing a DW XPCSplatform device driver registering a virtual MDIO-bus with a singleMDIO-device representing the DW XPCS device.DW XPCS platform device is supposed to be described by the respectivecompatible string "snps,dw-xpcs" (or with the PMA-specific compatiblestring), CSRs memory space and optional peripheral bus and reference clocksources. Depending on the INDIRECT_ACCESS IP-core synthesize parameter thememory-mapped reg-space can be represented as either directly orindirectly mapped Clause 45 space. In the former case the particularaddress is determined based on the MMD device and the registers offset (5+ 16 bits all together) within the device reg-space. In the later casethere is only 8 lower address bits are utilized for the registers mapping(255 CSRs). The upper bits are supposed to be written into the respectiveviewport CSR in order to select the respective MMD sub-page.Note, only the peripheral bus clock source is requested in the platformdevice probe procedure. The core and pad clocks handling has beenimplemented in the framework of the xpcs_create() method intentionallysince the clocks-related setups are supposed to be performed later, duringthe DW XPCS main configuration procedures. (For instance they will berequired for the DW Gen5 10G PMA configuration.)Signed-off-by: Serge Semin Signed-off-by: David S. Miller List of files: /linux-6.15/drivers/net/pcs/Kconfig

196eec40 - net: pcs: Drop the TSE PCS driver

Thu, 01 Jun 2023 14:14:53 +0000

net: pcs: Drop the TSE PCS driverNow that we can easily create a mdio-device that represents amemory-mapped device that exposes an MDIO-like register layout, we don'tneed the Altera TSE PCS anymore, since we can use the Lynx PCS instead.Reviewed-by: Simon Horman Signed-off-by: Maxime Chevallier Signed-off-by: David S. Miller List of files: /linux-6.15/drivers/net/pcs/Kconfig

4765a972 - net: pcs: add driver for MediaTek SGMII PCS

Sun, 19 Mar 2023 12:57:50 +0000

net: pcs: add driver for MediaTek SGMII PCSThe SGMII core found in several MediaTek SoCs is identical to what canalso be found in MediaTek's MT7531 Ethernet switch IC.As this has not always been clear, both drivers developed differentimplementations to deal with the PCS.Recently Alexander Couzens pointed out this fact which lead to thedevelopment of this shared driver.Add a dedicated driver, mostly by copying the code now found in theEthernet driver. The now redundant code will be removed by a follow-upcommit.Suggested-by: Alexander Couzens Suggested-by: Russell King (Oracle) Signed-off-by: Daniel Golle Tested-by: Frank Wunderlich Reviewed-by: Russell King (Oracle) Signed-off-by: Jakub Kicinski List of files: /linux-6.15/drivers/net/pcs/Kconfig

4a502cf4 - net: pcs: add new PCS driver for altera TSE PCS

Fri, 02 Sep 2022 08:32:03 +0000

net: pcs: add new PCS driver for altera TSE PCSThe Altera Triple Speed Ethernet has a SGMII/1000BaseC PCS that can beintegrated in several ways. It can either be part of the TSE MAC'saddress space, accessed through 32 bits accesses on the mapped mdiodevice 0, or through a dedicated 16 bits register set.This driver allows using the TSE PCS outside of altera TSE's driver,since it can be used standalone by other MACs.Signed-off-by: Maxime Chevallier Signed-off-by: David S. Miller List of files: /linux-6.15/drivers/net/pcs/Kconfig

7dc54d3b - net: pcs: add Renesas MII converter driver

Fri, 24 Jun 2022 14:39:50 +0000

net: pcs: add Renesas MII converter driverAdd a PCS driver for the MII converter that is present on the RenesasRZ/N1 SoC. This MII converter is reponsible for converting MII toRMII/RGMII or act as a MII pass-trough. Exposing it as a PCS allows toreuse it in both the switch driver and the stmmac driver. Currently,this driver only allows the PCS to be used by the dual Cortex-A7subsystem since the register locking system is not used.Signed-off-by: Clément Léger Reviewed-by: Vladimir Oltean Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller List of files: /linux-6.15/drivers/net/pcs/Kconfig

ebeae54d - net: pcs: xpcs: depends on PHYLINK in Kconfig

Thu, 23 Jun 2022 20:29:33 +0000

net: pcs: xpcs: depends on PHYLINK in KconfigThis is yet another attempt at fixing:>> ERROR: modpost: "phylink_mii_c22_pcs_encode_advertisement" [drivers/net/pcs/pcs_xpcs.ko] undefined!>> ERROR: modpost: "phylink_mii_c22_pcs_decode_state" [drivers/net/pcs/pcs_xpcs.ko] undefined!Switch XPCS to be invisible, as Russell points out it's"selected" by its consumers. Drop the dependency on MDIO_BUSas "depends" is meaningless on "selected" symbols.Reported-by: kernel test robot Fixes: b47aec885bcd ("net: pcs: xpcs: add CL37 1000BASE-X AN support")Link: https://lore.kernel.org/netdev/20220620201915.1195280-1-kuba@kernel.org/Link: https://lore.kernel.org/r/20220622083521.0de3ea5c@kernel.org/Link: https://lore.kernel.org/r/20220623202933.2341938-1-kuba@kernel.orgSigned-off-by: Jakub Kicinski List of files: /linux-6.15/drivers/net/pcs/Kconfig

f355a55f - net: pcs-xpcs: depend on MDIO_BUS instead of selecting it

Thu, 15 Oct 2020 20:00:23 +0000

net: pcs-xpcs: depend on MDIO_BUS instead of selecting itThe below compile time error can be seen when PHYLIB is configured as amodule. ld: drivers/net/pcs/pcs-xpcs.o: in function `xpcs_read': pcs-xpcs.c:(.text+0x29): undefined reference to `mdiobus_read' ld: drivers/net/pcs/pcs-xpcs.o: in function `xpcs_soft_reset.constprop.7': pcs-xpcs.c:(.text+0x80): undefined reference to `mdiobus_write' ld: drivers/net/pcs/pcs-xpcs.o: in function `xpcs_config_aneg': pcs-xpcs.c:(.text+0x318): undefined reference to `mdiobus_write' ld: pcs-xpcs.c:(.text+0x38e): undefined reference to `mdiobus_write' ld: pcs-xpcs.c:(.text+0x3eb): undefined reference to `mdiobus_write' ld: pcs-xpcs.c:(.text+0x437): undefined reference to `mdiobus_write' ld: drivers/net/pcs/pcs-xpcs.o:pcs-xpcs.c:(.text+0xb1e): more undefined references to `mdiobus_write' followPHYLIB being a module leads to MDIO_BUS being a module as well while theXPCS is still built-in. What should happen in this configuration is thatPCS_XPCS should be forced to build as module. However, that select onlyacts in the opposite way so we should turn it into a depends.Fix this up by explicitly depending on MDIO_BUS.Reported-by: Randy Dunlap Acked-by: Randy Dunlap # build-testedFixes: 2fa4e4b799e1 ("net: pcs: Move XPCS into new PCS subdirectory")Signed-off-by: Ioana Ciornei Signed-off-by: Jakub Kicinski List of files: /linux-6.15/drivers/net/pcs/Kconfig

0da4c3d3 - net: phy: add Lynx PCS module

Sun, 30 Aug 2020 08:34:01 +0000

net: phy: add Lynx PCS moduleAdd a Lynx PCS module which exposes the necessary operations to drivethe PCS using phylink.The majority of the code is extracted from the Felix DSA driver, whichwill be also modified in a later patch, and exposed as a separate modulefor code reusability purposes.As such, this aims at feature and bug parity with the existing Felix DSAdriver, and thus USXGMII, SGMII, QSGMII and 2500Base-X (only w/o in-bandAN) are supported by the Lynx PCS module since these were also supportedby Felix.The module can only be enabled by the drivers in need and not userselectable.Signed-off-by: Ioana Ciornei Signed-off-by: David S. Miller List of files: /linux-6.15/drivers/net/pcs/Kconfig

2fa4e4b7 - net: pcs: Move XPCS into new PCS subdirectory

Thu, 27 Aug 2020 02:00:28 +0000

net: pcs: Move XPCS into new PCS subdirectoryCreate drivers/net/pcs and move the Synopsys DesignWare XPCS into thenew directory. Move the header file into a subdirectoryinclude/linux/pcsStart a naming convention of all PCS files use the prefix pcs-, andrename the XPCS files to fit.v2:Add include/linux/pcsv4:Fix include path in stmmac.Remove PCS_DEVICES to avoid new promptsCc: Jose Abreu Reviewed-by: Florian Fainelli Signed-off-by: Andrew Lunn Signed-off-by: David S. Miller List of files: /linux-6.15/drivers/net/pcs/Kconfig